Django - 覆盖表单save()方法返回None？

Question

目前,我的模型表单覆盖了save()方法,它工作正常.问题是当我调用savedObject = form.save()时,表单得到保存,但它返回None？在覆盖save()之前,我会得到保存的对象,但这种方法有什么问题？

以模型形式保存():

def save(self, *args, **kwargs):
       kwargs['commit']=False
       obj = super(MyForm, self).save(*args, **kwargs)
       obj.time = datetime.date.today()
       obj.expire = datetime.date.today()
       return obj.save()

POST后在我的视图中调用:

savedObject = form.save()
#form is now saved, but savedObject is None

Answer 1

正确的方法:

def save(self, commit=True):
    obj = super(MyForm, self).save(commit=False)
    obj.time = datetime.date.today()
    obj.expire = datetime.date.today()
    if commit:
        obj.save()
    return obj